- New Policies Scenario of the World Energy Outlook broadly serves as the IEA baseline scenario. It takes account of broad policy commitments and plans that have been announced by countries, including national pledges to reduce greenhouse-gas emissions and plans to phase out fossil-energy subsidies, even if the measures to implement these commitments have yet to be identified or announced.

- Current Policies Scenario assumes no changes in policies from the mid-point of the year of publication (previously called the Reference Scenario).

- 450 Scenario sets out an energy pathway consistent with the goal of limiting the global increase in temperature to 2Â°C by limiting concentration of greenhouse gases in the atmosphere to around 450 parts per million of CO2.